Domestic heater



March l0, 1931. J, Wl RATZ 1,796,047

DOMESTIC HEATER Filed March 30. 1929 f, I www 2 1W/m71 9 (/Z/ v)2 I am@ Patented Mar. 10, 1931 UNITED STATES JOHN WILLIAM RATZ, OF PRESTON, ONTARIO, CANADA`r DOMESTIC HEATER Application led March 30, 1929. Serial No. 351,159.

My invention relates to improvements in domestic heaters, and the object of the in vention is to devise a heater in which the hot gases passing o' from the fire bed will be brought into direct contact with the entire surface of the outer walls of the heater so as to radiate a maximum amount of heat therefrom and at the same time utilize such heat in its travel, for heating an oven located beneath the tire pot and ash pit of the heater, and it consists essentially of the arrangement and construction of parts as hereinafter more particularly explained.

F ig. l is a vertical sectional View through my heater and extending` from back to front of the heater. f

Fig. 2 is a sectional view taken at right Vangles to the section shown in Fig. i.

Fig. 3 is a plan sectional view on line 3 3,

Fig. 2, on a slightly reduced scale.

ln the drawings like characters of reference indicate corresponding parts in each figure.

l indicates the outer casing, the side walls 25 of which are formed corrugated as indicated at 1X in Fig. 3. 2 is an inner casing which lis supported within the outer casing and spaced apart from the bottom l0 of the outer casing, as clearly indicated in Figs. l and 2. The side walls of the inner casing 2X and 20 preferably fit against the inner portions of the corrugation l", thereby forming vertical ducts through which the hot gases travel, and thereby holding such gases in close contact with the walls of the casing to distribute such hot gases equally over the surface of the outer casing so that the heat radiating therefrom is equalized, and thereby utilizing a maximum amount of radiating surface. Y

The inner casing 2 is provided with an open top 3 located beneath the closed top et of the outer casing. 5 is a fire pot supported in the inner casing 3, such tire pot being provided with any suitable form of grate 6, supporting the fire bed. rllhe lire pot is located in theupper portion of the inner casing S, and immediately below the fire pot 5 and grate 6 is located a chamber 7 forming an ash pit.

8 is a chamber located immediately below the ash pit 7, the bottom wall 7X of such ash pit forming the top wall of the chamber 8, which chamber 8 is utilized as an oven. The bottom wall 8X or" the oven 8 also forms the bottom wall of the inner casing 2, the bottom wall 8 being spaced from the bottom wall 1 so as to form an interposed duct 9. l0 is the back duct of the heater leading to the chimney opening ll.

l2 are bams plates extending from each side of ther opening 13,` communicating be tween the duct 9 and the chimney duct l0.

d* is a slotted opening formed in the closed top t of the outer casing l. Such slotted opening is provided with a damper plate 14 65 which is preferably hinged as indicated in Fig. 2, such damper plate being opened or closed to any desired extent to control the amount of cold air entering into the heater. l/Vhen 'ii operation the damper plate it is 70 opened, air passing through the slotted opening d* onto the top of the i'ire bed, such air is heated and then passes over the upper edges of the walls of the inner casing 3, passing down the ducts l* formed by the corrugated side walls of the outer casing but passing therefrom into the duct 9 and from thence between the bail-le plates l2, through the opening 13 and up the chimney duct lO to the chimney opening 11.

By this means it will be seen that not only is a maximum radiating surface provided for heating the room or apartment in which the heater is located, but the hot gases are also utilized to heat the oven as such gases pass to the chimney outlet. From this description it will be seen that I have devised a very simple construction of heater which will have a maximum eneiency not only as a room heater but also form a heater in which an oven may be incorporated and the hot gases also utilized for heating such oven.

What I claim as my invention is A domestic heater comprising an outer casing having an air supply opening in the top thereof and having a chimney outlet in the back wall and provided with an inner chamber supported within the outer casing and spaced from the bottom thereof open at the top and spaced from the side walls of the W l casing .to forr yducts on each sideV thereof,

.corrugatons formed in the side Walls of the outer casing `1:0 divide the Side ductsv ntoa plurality of channels, a separated duet leading from the bottom of the'outer Casing to the chimney outletfwhereby coldar is fed on I to the top of the fuel bed, Vlrleateland .passed clownthechanel corrugation on each side" of theV inner chamber into the nterspae bel0.v

Heath the same to pass to the duet leading to the chimney outlet. JOHN WILLIAM RATZY. Y Y 

